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NEUTRON GENERATION USING PYROELECTRIC CRYSTALS

United States Patent Application

20170040075
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
According to one embodiment, a method for producing a directed neutron beam includes producing a voltage of negative polarity of at least -100 keV on a surface of a deuterated or tritiated target in response to a temperature change of a pyroelectric crystal of less than about 40.degree. C., the pyroelectric crystal having the deuterated or tritiated target coupled thereto, pulsing a deuterium ion source to produce a deuterium ion beam, accelerating the deuterium ion beam to the deuterated or tritiated target to produce a neutron beam, and directing the ion beam onto the deuterated or tritiated target to make neutrons using at least one of a voltage of the pyroelectric crystal, and a high gradient insulator (HGI) surrounding the pyroelectric crystal. The directionality of the neutron beam is controlled by changing the accelerating voltage of the system. Other methods are presented as well.
Tang, Vincent (Dublin, CA), Meyer, Glenn A. (Danville, CA), Falabella, Steven (Livermore, CA), Guethlein, Gary (Livermore, CA), Rusnak, Brian (Livermore, CA), Sampayan, Stephen (Manteca, CA), Spadaccini, Christopher M. (Oakland, CA), Wang, Li-Fang (Livermore, CA), Harris, John (Monterey, CA), Morse, Jeff (Westhampton, MA)
15/ 279,214
September 28, 2016
[0001] The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.